Lock.



No. 656,0II. Patented Aug. I4, |900.

' H. G. CARLETON.

LOCK. y

(Applicatinn fled Nov. 15l 1899.) (No Model.)

mma

36 l Iwemr; 135502?? u y mlhk?? 35 2n/@ fa# M w W www @L we Nonms PETERSco., wow-umn.. wAsHmGToN, D.

. 5 for opening the lock being in this Nmap 'STATES HENRY GUY CARLETON,OF NEIV YORK, N. Y., ASSIGNOR TO THE OARLETON ELECTRIC COMPANY, OF SAMEPLACE.

LOCK.

SPECIFICATI'N'orming part of Letters Patent No. 656,011, dated August14, 1900. Application tiled .November 15,1899. Serial Nox 737,066. (Nomodel.)

To @ZZ when@ it 'mfr/,y concern:

Be it known that l', HENRY GUY CAnLnroN, a citizen of the United States,residing at New York, county of New York, and State ef Newv York, haveinvented certain new and useful Improvements in Locks, fully describedand represented in the following specification and the accompanyingdrawings, forming a part of the same.

1o This invention relates to certain improvements in locks.

In one class of electric locks as now ordinarily constructed the movablepart which opens the loch-such, for instance, as the slidx5 ing bolt-isoperated by the magnet, the attractive force ofthe magnet being` eitherexercised directly on the bolt or utilized to actuate certain mechanicalagencies which in turn operate the bolt. In another class of 2o electriclocks thc magnet is located in the operating connections and serves totic orsecure together certain parts of the train of connections whichextend from the operating device to the bolt or other movable part, thepower class applied by hand.v A lock of this type is shown in my IatentNo. 608,321, granted Augustf2, 1898.

In the first class of locks above referred to 3o magnets of veryconsiderable strength and requiring a considerable amount ofbatterypower-are necessarily employed. In the second class of locks thestrength of the magnets and the amount of battery-power is largelyreduced; but since the magnet is located in the connections and servesin a way to tie certain parts of the connections together its attractiveforce is still required to be considerable. Ilurthermorehecircuit-controllingde- 4o .vices ordinarily employed in electric locksare, as a rule, located outside the casi ng of the lock and are operatedby agencies independent of the lock-operating mechanism. In opening saidlocks, therefore, it is necessary to first close the circuit, thecircuit then remaining closed until the lock is operated. Ii", A V asmay happen, some little time elapses bctween the closing ofthe circuitand the operation of the lock, considerable battery-power 5o is used,and with open-circuit batteries it sometimes happens that the batterybecomes ezhausted before the lock is operated.

A further objection to electric locks as now ordinarily constructed. isthat they are only provided with one set of operating means and cantherefore only be operated through the electrical devices. It',therefore, it happens that there is any break in the circuitconnections, or if the electrical devices fail to act for any reason,the lock becomes inoperative and 6o cannot be opened until theelectrical connections are rendered operative or the lock` is eitherpicked or taken to pieces.

Itis one of the objects of the present invention to produce an improvedlock which shall embody all the advantages of an electric controllingmechanism and in which at the same time the engaging part, which ismoved to open the lock,shall be operated entirely by mechanical devices,thereby enabling a large amount 7o of force to be used when necessary toopen the lock, and at the same time very little batterypower is requiredto operate the coutrollin devices. A

A further object of the invention is to cen- 7 5 struct thecircuit-closing devices for electric locks in such a way as to causethem to be operated by the means by which the movable engaging part ofthe lock is moved, thereby conserving the power of the battery employed,8o as no battery-power is consumed until the lock is actually' operated.

A further object of the invention isto produce an improved lock whichshall be provided with a plurality of actuating devices, one of saiddevices being purely mechanical and the other beingelectricallycontrolled.

A further object of the invention is to producean improved form ofelectric controlling mechanism for use in conneetionwith elee- 9otrically-operated locks and other similar de- Vices,

With these and other objects in view the invention consists in certainconstructions and in certain parts, improvements, and com- .95hina-tions, as will be hereinafter more fully described and then pointedout in the claims hereunto appended.

In the accompanying drawings, which form a part of this specification,and in which like foo characters of reference indicate the same parts,Figure 1 is a vertical sectional view illustrating a portion or" a dooror other part provided with a lock, the lock being shown in positiontherein, partly in section and partly in elevation. Fig. 2 is ahorizontal section on the line i of Fig. 1. Fig 3 is a diagrammatic Viewof the circuits employed.

Referring to the drawings, which illustrate a preferred embodiment ofthe invention, 1 indicates r door or other movable part in which thelock-casing 2 is located. The jamb is indicated at 3, said jamb beingrprovided with the ordinary keeper 4.

The bolt mechanism of the lock may be of any usual or desired form. Inthe present inst-ance it consists ot a sliding bolt 5, said boltworkingin an opening in the lock-casing 2 and in a. supporting `cuide orloop 7. The bolt is held forward. to its duty by the usual spring S. y

When the bolt is the moving part by which the lock is opened, as in thelock shown, it will be provided with suitable means which lare engagedby the operatingr connections when it is to be slid. While these means'may be of any suitable form, in the present instance the bolt isprovided with a project-ion or shoulder 9', said shoulder preferablyextending from both sides thereof and being preferably cast in'one piecewith the bolt.

The lock shown is` provided with two sets of devices, one of thesedevices beinga purelymechanical operatingT device and the otherbeingelectrically controlled. The electricallycontrolled operatingrdevice may be widely varied in form. in the present instance it consistsof a movable member which is in the form of an open orA frame-sliap .dslide 10, the sides of which -are connected at their outer ends by across-piece ll. One of the sides of the slide is preferably providedwith an extension l2, on which is formed a rack 13, this rack beingprengaged by an actuating device to be hereinafter described. lVhilc themovable member which operates Athe engaging part is shown asa slide, itis to he understood that it maybe differently constructed, i desired,and that it may be operated by means other than the rack referred to.rlhe slide is supportm'l in the lock-casing in any suitable manner. ltis shown as supported by a bracket lland by a projection l5, the slideitself passing' through an oponing in the bracketl-t and the rackextension 12 moving.;` in a `groove in the projection l5.

The actuating device by which the slide is moved maybe widely varied inconstruction. In the lock shown the ordina ry knob-spindle 1G, whichcarries the lt'nob 17, is provided :ith a toothed segmrnl lo and withthe usual torsion returning-sming ll. The scgmcntl is so arranged as' topermit a limited movement of the spindhfbcforc its: iccllroome intoengagementwith ilu` 'r .-i -zl1l,=. lhc purpose of this ilmif continentwiil be hereinafter er..

The slide 10 may be returned after operation by the segment in anysuitable or desired manner. In the lock shown a spring 2O connects withthe cross-piece 11 and with a suitable eye 21, secured in thelock-casing.

A controller which is preferably electrically operated is provided, thepurpose of this device being to so control the operation of the parts ofthe loclins to make the movement of the withdrawing'mcchanism effectiveto operate the movable engaging part ot the lock, which inv theconstruction shown is the bolt. This controlling device may be widelyvaried in location, construction, and operal tion, and the term"'controllec7 as used in the specification and claims is to beunderstood as covering` any device by which the movement of the slide orother witlnirawinj.; mechanism is made effective to withdraw the otherengaging part of the lock. ln the loci-z shown the cont-roller operatesupon the slide and regulates the amount of its movement; butconstructions in which the controller does not operate upon the slideare possible and within the invention. In tho present construction thecontroller consists of a part 22, which is arranged to move with theslide preferably by being pivoted thereto, the pivot for saidcontroller' beim,r at the point 23. The Said controller in the formshown provided with a hooked end ill: and a cam-face 25. The hooked endof thc controller engages under certain circumstances with a stop 2U,said stop being in the loci: illustrated located behind the bracket 14,and under other circumstances moves over the stop without engaging it. l

The position of the controller is determined by means of asuitably-arranged electromagnet, the coils 27 of which are mounted on asuitable base 2S, thc base bein-f secured in any suitable manner to theloclvcasing 2. The pole-pieces 2f) of the magnet are arranged so as tobe just over the path of travel of the pivoted controller 22, and thecontroller thus forms the armature for said pole-pieces.

From the construction so far described it will be obvious that when theshaft 1G is operated by the knob 17 and the segment 18 engages therack-teeth 13 the slide l() will be drawn back. It' nowa circnitbcestablished through the magnet, the controller 22 will be held up in theposition shown in Fig. 1. The slide lO can therefore be drawn back, sothat ils connecting-piece l1 strikes the projection .fl on the bolt andcauses the bolt to move back with the slide. If, however, a circuit isnot established through the magnet, as' soon as the slide moves farenough so as to draw the hooked end :2l of the conlrolhir off thebracket 14s the controller will drop by gravity, and its hooked end willengage the stop 2G. 'lhc :,top 2o' is so located as to be engaged by thecontroller before thel cross-bar 1l reaches the position where itengages the projection i). As soon therefore as the hooker". end 2l ofthe controller engages IOC- IIO

the-stop 26 the further movement of the slide is checked and theboltcannot be drawn back.

While the armature-controller 22 may, if desired, be allowed to come incontact with the pole-pieces of the magnet, the construction willpreferably be arranged so as to prevent any actual contact between thearmature-controller and the pole-pieces, thereby reducing the frictionand the amount of power necessary to draw back the slide. In order toeffect this function, the construction will preferably embody a stop-arm30, carrying a friction-roller 31, which is so located as to j ustprevent the armature when the magnet is energized from coming againstthe pole-pieces.

While the circuit-controlling devices for the magnet-circuit may belocated. in any suitable place and operated in any suitable manner, theyare preferably arranged inside the lock and are operated by theactuating mechanism of the lock. To this end a spring 32 is provided,said spring forming oneterminal of the magnet-circuit. In theconstruction shown this spring is mounted on a suitable insulating-block33. It may, however, be arranged and mounted in any suitable or desiredmanner. The spring 32 lies in the path of a circuit-closing projection34, said projection bein-g preferably carried by the knob-shaft 16 andbeing segmental in form.

It will of course be understood that when a set of circuit-controllingdevices such as have been described is located inside the lock thecircuit will be provided with a second set of controlling deviceslocated at another point. This second set of circuit-controllin gdevices may be of any suitable form and may be located in the buildingor apartment in which the lock is located, or, if desired, they may bein the door itself. In case they are located in the door itself thesecircuit-controlling devices will preferably be of the construction shownin my pending application, Serial No. 731,391, filed September 23,1.899. A full description of these circuit-controllin g devices isunnecessary for the purpose of this application. It may be said,however, that in general they consist of a key-operated barrel', whichisy indicated at 35, said barrel carrying a circuitclosing projection 36, which coperates with a terminal 37. W hen the barrel is turned by thekey, the projection 36 will contact with the terminal 37 and the circuitwill be closed. The closing of the circuit at this point having beeneffected either by the devices which have just been described or by anyother suitable devices, such as a switch or button, when the shaft 16 isturned by means of the knob 17, the segmental circuit-closing projection34 strikes the terminal spring 32. This closes the circuit through themagnet. The further rotation of the shaft 16 brings the segment 18intoengagement with the rack 13 and draws back the slide 10, the magnetoperating to hold the controller 22 in inoperative position, as has beenbefore described.

By this arrangement of circuit-controlling devicesl no battery-power isconsumed until the lock is actually operated.

As khas been before stated, a second set of devices is provided foroperating the lock. While this set of devices may be widely varied inconstruction, in the lock shown they consist of a slide 38, which issupported in the lock-casing in any suitable manner, as by guides 39,and is provided with an upturned projection 38. The slide 38 is providedwith rack-teeth 40, which are engaged by a segment 41,- carried on aspindle 42, the said spindle being provided with a knob 43. This knob 43will be preferably located inside the room or building in which the lockis placed. The occupant of the room or building will by means of thisdevice be able to operate the lock entirely independent of theelectric-controlled device hereinbefore described.

Any suitable arrangement of circuitsY may be employed for energizing themagnet. suitable set of circuits is indicated in Fig. 3, in which thebattery is marked 44. From this battery a wire 45 is vled to thespringterminal 37. Another wire 46 is led from the revolving barrel 35,before referred to, to the segmental circuit-closin g projection 34.From the spring 32 a wire 47 is led to the magnetcoils 27, and fromthese coils a Wire 48 leads to the battery. The operation of thiscircuit is apparent,and a detailed description thereof is unnecessary.

It will be understood that the details of construction by which thisinvention is carried into effect may be varied within wide limits, andit is obvious that some features of the invention are capable of useindependently of other features and in locks which are not electricallycontrolled. It is to be understood,l therefore, that such independentuse of these features is contemplated. The invention is not therefore tobe limited to the specific construction which is herein described.

What I claim is-V l. In a lock, the combination with one of the engagingparts, of a withdrawing mechanism including an actuating device andsuitable mechanical connections between said device and the part, anormally-inoperative controller for the withdrawing mechanism, andsuitable electrical devices for causing the controller to remaininoperative, substantially as described.

2. In a lock, the combination with one of the engaging parts, of awithdrawing mechanism including an actuating device and mechanicalconnections between said device and the engaging part, said connectionsbeing constructed to permitalimited movement of the withdrawingmechanism without moving the engaging part, a controller for thewithdrawing mechanism, and suitable electrical devices for actuating thecontroller, substantially as described.

IOO

IIO

3. In a lock, the combination with one of the engaging parts, of awithdrawing mechanism including an actuating device and suitable movablemechanical connections between said device and the engaging part, acontroller mounted on said connections, and a suitably-located magnetfor actuating the controller, substantially as described.

4t. In a lock, the combination with one of the engaging parts, of awithdrawing mechanism including an actuating device, of suitablemechanical connections between said device and the engaging part, anormally-inoperative controller mounted on said connections, and asuitably-located magnet for causing the controller to remaininoperative, substantially as described.

5. In a lock, the combination with one of the engaging parts, of amovable member for operating said part, a controller, a connectionbetween the controller and the member whereby it moves with the member,and means whereby the controller is actuated so as to make the movementof the member effective to move the engaging part, substantially asdescribed.

6. In a lock, the combination with one of the engaging parts, of amovable member for operating said part, a controller, a connectionbetween the controller and the member whereby it moves with the member,and electricallyoperated means whereby the controller is actuated so asto make the movement of the member eective to move the engaging part,substantially as described.

7. In a lock, the combination with one of the engaging parts, of amovable member for operating the part, a moving controller by which themovement of the movable member is made effective to operate the engagingpart, and a suitably-located magnet across the field of which thecontroller moves and by which it is actuated, substantially asdescribed.

S. In a lock, the combination with one of the engaging parts, of awithdrawing mechanism including an actuating device, and a movablemember adapted to engage said part, a normally-inoperative controller,and electrically-operated means for causing the controller to remaininoperative, substantially as described.

9. In a lock, the combination with one of the engaging parts, of a slideby which said part is operated, means for moving the slide, anormally-inoperative controller for the slide, and electrically-operatedmeans for causing the controller` to remain inoperative, substantiallyas described.

10. In a lock, the combination with one of the engaging parts, of amovable member, means for actuating the member, a controller for themember mounted thereon, and a suitably-located magnet for determiningthe position of the controller, substantially as described.

11. In a lock, the combination with one of the engaging parts, said parthaving a projection, of a movable operating member therefor alsoprovided with a projection, means for actuating the member, a normallyinoperative pivoted controller carried by the member, a stop with whichthe controller engages, the parts being constructed to permit the memberto have a limited movement before the controller comes into operation,and means for causing the controller to remain inoperative,substantially as described.

l2. In a lock, the combination with one of the engaging parts, said parthaving a proj ection, of an operating member therefor also provided witha projection, means for actuating the member, a pivoted controllercarried by the member, a stop with which the controller engages, theparts being constructed to permit the member to have a limited movementbefore the controller comes into operation, and means for rendering thecontroller inoperative,substantially as described.

13. In a lock, the combination with one of the engaging parts, said parthaving a projection, of a movable operating member therefor alsoprovided with a projection, means for actuating the member, a pivotedcontroller carried by the member, a stop with which the controllerengages, the parts being constructed to permit the member to have alimited movement before the controller comes into operation, andelectrically operated means for rendering the controller inoperative,substantially as described.

14. In a lock, the combination with one of the engaging parts, said parthaving a proj ection, of an operating-slide therefor also provided witha projection, means for actuating the slide, a pivoted controllercarried by the slide, a stop with which the controller engages, theparts being constructed to permit the slide to have a limited movementbefore the controller comes into operation, and electrically-operatedmeans for rendering the controller inoperative, substantially asdescribed.

15. In a lock, the combination with one of the engaging parts, of amovable member, a controller, a connection between the controller andthe member whereby it moves with the member, means for operating thecontroller so as to make the movement of the movable member eifective toopen the lock, and means for actuating the member, substantially asdescribed.

16. In a lock, the combination with one of the engaging parts, of amovable member for operating said part, a controller, a connectionbetween the controller andthe member whereby it moves with the member,means for operating the controller so as to permit the movable member toopen the lock, and means for actuating the member, substantially asdescribed.

17. In a lock, the combination with one of the engaging parts, of aslide independent of said part, a controller moving with the slide,means for actuating the controller, and means IOO IOS

IIO

IIS

for actuating the slide, substantially as described.

l-S. In a lock, the combination with one of the engaging parts, of aslide, means whereby the slide is caused to move the said engaging partto open the lock, a controller moving with the slide, means forrendering the controller inoperative when the lock is to be opened, andmeans for actuating the slide, substantially as described. Y

19. In a lock the. combination with one of the engaging parts of ahand-actuated device, moving means between the hand-actuated device andthe engaging part whereby said part may be operated, a controller, aconnection between said controller and the means Whereby the controllermoves with the means and suitable electrical devices for operating thecontroller, substantially as described.

20. In a lock, thecombination with one of the engaging parts, of a slideindependent of said part, a hand-actuated device for operating theslide, a controller moving with the slide, and a magnetl located alongthe path of movement of the controller and operating to determine theposition of the controller, substantially as described.

2l. In a lock, the combination with one of the engaging parts, of amember for operating said engaging part, means for actuating saidmember, a controller moving with the member, a magnet located alongsidethe path of movement of the controller, the controller forming thearmature for the magnet, and means for preventing the controller fromtouching the poles of the magnet, substantially as described.

22. In a lock, the combination with a movable member, of means foractuating the member, a controller moving with the member, and a magnetfor determining the position ofY the controller and thus making themovement of the member eective to open the lock, substantially asdescribed.

23. In a lock the combination with a movable member of means t'oractuating the member, a controller, a connection between the controllerand the member whereby the controller moves with the member, asuitably-located magnet for which the controller forms the armature andacross the iield of which it moves, and means whereby the -movable mem-Vber is caused to open the lock, substantially as described. f

24. In a lock, the combination with a slide of means for actuating theslide, a controller, a connection between the controller and the slidewhereby the controller moves with the slide, a magnet for which thecontroller forms the armature and across the field of which it moves,and means whereby the slide is caused to open the lock, substantially asdescribed.

25. In a lock, the combination with a movable member, of a pivotedcontroller therefor moving witht-he member, means for holding thecontroller in anormally-inoperative position, a magnet, 'and means forenergizing it,

said magnet being located so as to act upon the controller and retain itin its normally-inoperative position when the magnet is energized, andmeans engaged lby the controller when the magnet is denergized, wherebythe controller determines the movement of the memgaged thereby when themagnet is denergized, and means for moving the slide and controller,substantially as described.

27. In a lock, the combination with a bolt havinga projection, of aslide having a projection which engages the projection on the bolt, acontroller pivoted on the slide, a mag- .net located in the path ofthecontroller, and operating when energized to hold the controller in aninoperative position, a stop engaged by the controller when the magnetis denergized, a rack for operating the controller, and a hand-operatedsegmentvfor operating the rack, substantially as described.

28. In a lock, the combination with a bolt having a projection, of aslide having a projection which engages the projection on the IOO bolt,a controller pivoted on the slide, a magnet located in the path of thecontroller and operating when energized to hold the controller in aninoperative position, the controller forming the armature for themagnet, means for preventing the controller from touching the poles ofthe magnet, a stop engaged by the controller when the magnet isdenergized, a rack for operating the controller, and a handoperatedsegment for operating the rack, substantially as described.

29. In a lock,the combination with one ofthe engaging parts, said parthaving a projection,

ot' a slide having an operating projection,

.IOS

IIO

guides for the slide, a controller moving with the slide, means wherebythe controller is normally held in inoperative position, a magnet i'orwhich the controller' forms the armature, said magnet operating toretain the controller in its inoperativeposition when energized, a stopengaged by the controller when the magnet is denergized, and means foractuating the slide, substantially as described.

30. In a lock, the combination with a bolt having a projection, ot' aslide having means 'forengaging with said projection, guides fortheslide, a pivoted controller mounted on'the slide and normally held ininoperative position by one of the guides, a magnet of which thecontroller forms the armature, said magnet operating when energized ktoretain the controller in its inoperative position, means for preventingthe controller from touching the poles of the magnet, a stop engaged bythe controller when the magnet is dcnergized, a rack for moving theslide, and a handoperated segment for engaging the rack, substantiallyas described.

3l. In a lock, the combination with one of the engagingparts, said parthaving a projection, of a slide having means for engaging saidprojection, said means being normally out of engagement with theprojection, whereby the slide is permitted to have a limited movementwithout operating the engaging part, a controller moving with the slide,a magnet for which the controller forms the armature, the magnetoperating when energized to retain the controller in inoperativeposition, and a stop engaged by the controller when the magnet isdenergized, said stop being located so as to permit a limited movementof the slide before the controller engages its stop, substantially asdescribed.

32. In a lock, the combination with one of the engaging parts,of anoperating-slide therefor, a controller moving with the slide, saidcontroller having a cam-face, a stop engaged by the controller, meansfor holding the controller in a normally-inoperative position,said meansand stop being located so as to permit a limited movement of the slideand controller, a magnet for retaining the controller in an inoperativeposition when energized, and a cam-face on the controller, said cam-facebeing arranged to engage the holding means for raising the controller asthe slide resumes its norm al position ,substantially as described.

33. In a lock, the combination with aslide and the means for moving it,of a controller moving with the slide, said controller having acam-face, means with which said cam-face engages for operating thecontroller, and a stop with which the controller engages, substantiallyas described.

34. In a lock, the combination with one of the engagingparts, of anactuating device, connections between the actuating device and theengaging part, a magnet for controlling the connections, a suitablecircuit therefor, and two sets of circuit-controlling devices, one setof said circuit-controlling devices being operated by the actuatingdevice, substantially as described.

35. In a lock, the combination with one of the engaging parts, of anactuating device, mechanical connections between the actuating deviceand the engaging part, a magnet for controlling the connections, asuitable circuittherefor, and two sets of circuit-controlling devices,one set of said circuit-controlling devices being operated by theactuating device, substantially as described.

36. In a lock, the combination with a movable engaging part, of meanswhereby it is moved to open the lock, a magnet, devices operated therebyto control the operation of said moving means, a suitable circuit forthe magnet, and two sets of circuit-closing devices, one set of saiddevices being operated by the means which move the engaging part,substantially as described.

37. In a lock, the combination with one of the engaging parts, of meansfor moving it, a controlling-magnet located in the lock-casing, asuitable circuit for the magnet, and two sets of circuit-controllingdevices, one set of said devices being located within the lockcasing andoperated by the moving means, substantially as described.

3S. In a lock, the combination with one of the engaging parts, of anactuating device therefor, connections between said device and theengaging part, a controlling-magnet, a suitable circuit for the magnet,and two sets of circuit-controlling devices, one set of saidcircuit-controlling devices being operated by the actuating device, thearrangement bein; such that the actuating device operates said set ofcircuit-controlling devices before it operates the connections,substantially as described.

39. In a lock, the combination with one of the engaging parts, of anactuating device therefor, mechanical connections bettyy '"1 said deviceandthe engaging part, a controlling-magnet, a suitable circuit for themagnet, and two sets of circuit-controlling devices, one set of saidcircuit-controlling devices being operated bythe actuating device, thearrangement being such that the actuating device operates said set ofcircuit-controlling devices before it operates the connections,substantialiy as described.

40. In a lock, the combination With one of the engaging parts, ofoperating connections therefor, a controlling-magnet, a suitable circuitfor the magnet, two sets of circuit-controlling devices, and a rotatingactuating device normally out of engagement with the operatingconnections, said device also actuating one set of thecircuit-controlling devices, said device being arranged to list operatesaid set of circuit-controllin g devices and then the connections,substantially as described.

4l. In a lock, the combination with one of the engaging parts, ofsuitable connections for operating the same, said connections includinga rack, a controlling-magnet, a suitable circuit therefor, two sets ofcircuit-controlling devices therefor, a rotating actuating device havinga toothed segment for engaging the rack, said segment being normally outof engagement with the rack, and means whereby the rotating actuatingdevice is caused to operate one set of circuit-controlling devicesbefore its segment comes into engagement with the rack, substantially asdescribed.

42. In a lock, the combination with one of the engaging parts, of aslide for operating it, a controller for the slide, a magnet fordetermining the position of the controller, a suitable circuit for themagnet, two sets of circuit-controlling devices, a rack for operatingthe slide, an actuating device including IOO IIO

-a rotating toothed segment for operating the rack, said segment andrack being normally disengaged, and. means whereby the actuating deviceoperates one set of the circuit-controlling devices before thesegmentengages the rack, substantially as described..

43. In a lock, the combination with one of the engaging parts, of twoactuating devices therefor, connections between one of the ac- Iotuating devices and said engaging part, connections between the otheractuating device and said engaging part, a controller mounted on thelast-named connections, and means for operating the controller to causesaid connecr 5 tions to open the lock, substantially as described. Y

,44. In a lock, the combination with one of ...i -the engaging parts, oftwo actuating devices, a slide between one of the actuating devices 2oand the engaging part, a slide between the other actuating device andsaid engaging part, a controller mounted on one of said slides, andmeans for operating the controller to make the movement of the slideeffective "?e operate the engaging part, substantially s described.

45.. In a lock, the combination with one of the engaging parts, of twoactuating devices, a slide between one of the actuating devices 3o andthe engaging part, a slide between the other actuating device and saidengaging part, a controller` mounted on one ot said slides, and a magnet`forY operating the controller to make the movement of said slideeffective to operate the engaging part, substantially as described. v

4G. In a lock, the combination with one of the engaging parts, of twoactuating devices, a slide between one of the actuating devices and theengaging part, a slide betweenthe other actuating device and saidengaging part, a controller mounted on one of said slides and governingits movement, and a magnet for actuating the controller, substantiallyas described.

47. In a lock, the combination with a sliding bolt having an operatingprojection, of two slides provided with means for engaging saidprojection, an independent actuating device for each of the slides, saidactuating devices lying on different sides of the bolt, a controller forone of the slides, the said controller moving with the slide, a magnetlocated in the path of the controller and operating to determine theposition'of the controller, aI suitable circuit for themagnet, and twosets of circuit-controlling devices for the magnet, one of said sets ofcircuit-controlling devices being arranged to be operated by one of theactuating devices, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing Witnesses.

HENRY GUY CARLETON. Witnesses:

A. A. V. BOURKE, BENJ. C. VAN CoTT.

